This is a typical after-hours scene in Bangkok, or more specifically, Thong Lor, one of the City of Angels’ most cosmopolitan neighborhoods. A world away from the backpacker dives of Khao San Road and the city’s less salubrious red-light districts, the area—based around Sukhumvit Road’s Soi 55—offers edgy watering holes, craft brews on tap and pop-up music nights that cater to locals and expats alike, proving that it’s possible to have a night out in Bangkok without recreating “The Hangover Part II.”